General Morden's coup that brought the world to the brink of total destruction and chaos is all but over with the counteroffensive of the Government Forces. The leading agents for the battle's success, Marco and Tarma, have since been promoted. Savoring the peace that sprung from their efforts, they now strive to rebuild the Special Forces Squad Peregrine Falcons.

Then one day, Marco and Tarma are summoned to the Government Force's Office of the General Staff.
Apparently the activities of Morden's factions are escalating. The influence of Morden's revolutionary army has already been eradicated, but those sympathetic to his condemnation of the rot among the General Forces' leaders and governments worldwide are surprisingly numerous and this has led to an endless series of fitful, small-scale uprisings. Yet recently these have become more organized and calculated. A comprehensive analysis of data from around the world suggests these clearly indicate the existence of some plan for a large-scale operation. And there is only one man capable of planning, executing, and leading such a massive operation.

That would be Satan's stand-in, General Morden!

ven though two years have gone by, the shadow of Morden still remains. But not even Morden could have prepared a second coup in such a short time. Could he really be alive?
Moreover, if he was alive, when and how would the coup break out?
And what is the secret behind his apparent ability to pull a coup together in this short period of time…?
Marco and Tarma are entrusted with a secret mission to thwart the insurgent forces and nip this second coup in the bud. It will be nasty business to wage this series of preemptive attacks on insurgent operations with a small squad of elite troops and crush all opposition. Naturally the highest secrecy is required. Even their bosses are not informed of the full mission so as not to let any information leak out to Morden's forces. More important, this must stay secret to prevent people who still now trembled with fear at the mere mention of Morden's name from falling into wholesale panic….

It's a mission that could be called tougher than the previous Great War, but the two promptly accede to the task. If Morden is alive, he's not going to stay that way for long! The two hunger for battle, but there's an unexpected catch to all of this.

This mission is to be carried out jointly with the Intelligence Agency's Special Ops Squad S.P.A.R.R.O.W.S. The two who presumed PF Squad would handle this alone voice their objections, but HQ will have no bellyaching. This is a product of the complexly interwoven wishes of the Intelligence Agency squaring off against the combat forces and power plays among the top brass that Marco and the others have no reason to understand. At any rate, the generals insist this be carried out in spite of the vagueness behind it.
The day for the operations arrives. It comes with the two agents from S.P.A.R.R.O.W.S. They are the two young women Eri and Fio.

"Sergeant Eri Sakamoto, reporting for duty. You can call me Eri."
"Uh, it's an honor to meet the two heroes of the Great War. I'm Master Sergeant Fiolina Germi of S.P.A.R.R.O.W.S. This is the first time I've taken part in such a large-scale operation, but I'm ready. I'll do my best. You can count on me."
"Aw, man, Marco. These chicks are gonna mess things up!" "Can it! We're burning daylight here. Let's move out!"

And so the mission to put down the coup two was set into motion. Can Marco and the gang prevent a second coup? Is Morden really still alive? And just what is the insurgent army's terrifying secret?
The battle has again begun!